Answer:
A right-angled triangle has 2 legs and a hypotenuse.
In trigonometry, the 2 legs are labelled opposite and adjacent, and this labeling is interchangeable, depending on which interior angle we are working with.
the hypotenuse is always the side opposite to the 90° angle and is therefore always the longest side. So for this triangle, the hypotenuse is line LM.
For example, If we look at angle L, the line KL is adjacent (next) to it, and line KM is opposite to it. However, if we look at angle M, the line KM is adjacent to it, and the line KL is opposite it. Remember, the hypotenuse doesn't change.
Therefore:
Angle adjacent to side KL = angle L
Angle adjacent to side KM = angle M
Side opposite to angle L = side KM
Side opposite to angle M = side KL
Hypotenuse = side LM